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This website, the Groundwater Watch web application, will be unavailable to users after September 1, 2022. All raw data accessible through Groundwater Watch are available on Water Data for the Nation ( and will remain so in perpetuity. Additional groundwater data access options are listed in the blog. Starting on September 1, this website will redirect users to Water Data for the Nation. Please direct any questions about this web application shutdown to

Below Normal Groundwater Levels Network
Below Normal Groundwater Levels Network national well location map.
Below Normal Groundwater Levels Well Count: 3501
Map generated 8/11/2022 8:40:18 AM
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For a list of network wells, click on a state or territory above or select from the box:

A well with below normal groundwater levels is identified on these pages when the most recent water-level measurement is in the 24th percentile or lower in the month of measurement over the period of record for the well. To be included on this map in red or orange, the well must be in an active measurement program (the well appears on the Active Groundwater Level Network) and the well must have 10 or more years of record in the month of the most recent measurement. These web pages present all active wells, regardless of measurement frequency, aquifer monitored, or the monitoring objective.

All wells in the Active Groundwater Level network are presented on the National map for context. The symbol colors for wells in which the most recent water level is greater than the 24th percentile are muted in order to focus on the below normal groundwater levels. The underlying state and county maps present only those wells in which the most recent measurement is below normal.

Alabama Alaska Arkansas Arizona California Colorado Connecticut Connecticut District of Columbia District of Columbia Delaware Delaware Florida Georgia Hawaii Iowa Idaho Illinois Indiana Kansas Kentucky Louisiana Massachusetts Massachusetts Maryland Maryland Maine Michigan Minnesota Missouri Mississippi Montana North Carolina North Dakota Nebraska New Hampshire New Hampshire New Jersey New Jersey New Mexico Nevada New York Ohio Oklahoma Oregon Pennsylvania Puerto Rico Rhode Island Rhode Island South Carolina South Dakota Tennessee Texas Utah Virginia Vermont Vermont Washington Wisconsin West Virginia Wyoming

*References to non-Department of the Interior (DOI) products do not constitute an endorsement by the DOI.

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Last update: Monday, March 8, 2021 at 14:13
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